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ASoC: sta32x: Move regulator acquisition to I2C probe 

This is better style as it ensures we don't try to do the ASoC probe
without required resources. Also convert to devm_ while we're at it,
saving a bit of code, and fix a leak of enable on error.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Johannes Stezenbach <js@sig21.net>
This commit is contained in:
Mark Brown 2012-09-10 10:59:51 +08:00
parent 59ac2149ae
commit aff041af94
1 changed files with 15 additions and 17 deletions
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32
sound/soc/codecs/sta32x.c
View File

@ -825,22 +825,11 @@ static int sta32x_probe(struct snd_soc_codec *codec)
sta32x->codec = codec;
sta32x->pdata = dev_get_platdata(codec->dev);
/* regulators */
for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)
sta32x->supplies[i].supply = sta32x_supply_names[i];
ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
if (ret != 0) {
dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
goto err;
}
ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
if (ret != 0) {
dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
goto err_get;
return ret;
}
/* Tell ASoC what kind of I/O to use to read the registers. ASoC will
@ -849,7 +838,7 @@ static int sta32x_probe(struct snd_soc_codec *codec)
ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
if (ret < 0) {
dev_err(codec->dev, "failed to set cache I/O (ret=%i)\n", ret);
return ret;
goto err;
}
/* Chip documentation explicitly requires that the reset values
@ -915,9 +904,8 @@ static int sta32x_probe(struct snd_soc_codec *codec)
return 0;
err_get:
regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
err:
regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
return ret;
}
@ -928,7 +916,6 @@ static int sta32x_remove(struct snd_soc_codec *codec)
sta32x_watchdog_stop(sta32x);
sta32x_set_bias_level(codec, SND_SOC_BIAS_OFF);
regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
regulator_bulk_free(ARRAY_SIZE(sta32x->supplies), sta32x->supplies);
return 0;
}
@ -966,13 +953,24 @@ static __devinit int sta32x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct sta32x_priv *sta32x;
int ret;
int ret, i;
sta32x = devm_kzalloc(&i2c->dev, sizeof(struct sta32x_priv),
GFP_KERNEL);
if (!sta32x)
return -ENOMEM;
/* regulators */
for (i = 0; i < ARRAY_SIZE(sta32x->supplies); i++)
sta32x->supplies[i].supply = sta32x_supply_names[i];
ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(sta32x->supplies),
sta32x->supplies);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, sta32x);
ret = snd_soc_register_codec(&i2c->dev, &sta32x_codec, &sta32x_dai, 1);